利用带负电荷的多糖控制尿素的释放

IF 3.1 4区工程技术 Q2 POLYMER SCIENCE

Polymers for Advanced Technologies Pub Date : 2024-07-11 DOI:10.1002/pat.6508

John Praveen Kumar John Kennedy, Jothi Basu Muthuramalingam, Vignesh Kumar Balasubramanian, Muthumari Balakrishnan, Kavitha Murugan, Kumar Ponnuchamy

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引用次数: 0

摘要

本研究旨在合成交联海藻酸-阿拉伯胶（一种多糖生物聚合物复合材料），以评估其对尿素控释的功效。以 2:1 的比例制备了海藻酸盐-阿拉伯胶溶液，并以三种不同的量夹带尿素：SG1 为 50 毫克，SG2 为 100 毫克，SG3 为 150 毫克。以 CaCl2 作为交联剂，采用离子凝胶法制备出夹杂尿素的海藻酸阿拉伯胶水凝胶珠。对制备的珠子进行了物理评估，以分析其尺寸、孔隙率和膨胀行为。SG3 的直径最大，为 3.60 ± 0.01 毫米。此外，SG3 珠的孔隙率最高，为 63.6% ± 0.33%。尿素的释放采用二乙酰莫诺辛（DAM）-紫外可见光谱法进行量化。此外，还使用傅立叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）和热重分析（TGA）分析了所制备水凝胶珠的特性。傅立叶变换红外光谱显示了 3770 和 2355 cm-1 处的特征谱带，表明海藻酸盐阿拉伯胶珠中夹带有尿素。热重分析表明所制珠子具有良好的热稳定性。

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Controlled release of urea using negatively charged polysaccharides

The current study aims to synthesize cross‐linked alginate–gum arabic, a polysaccharide biopolymer composite, to evaluate its efficacy for the controlled release of urea. The alginate–gum arabic solution was prepared in a 2:1 ratio, and urea was entrapped in three different amounts: 50 mg for SG1, 100 mg for SG2, and 150 mg for SG3. CaCl2 used as the crosslinker, and the urea‐entrapped alginate–gum arabic hydrogel beads were produced using ionotropic gelation method. Produced beads were underwent physical evaluation to analyze their size, porosity, and swelling behavior. The highest diameter was exhibited in SG3 at 3.60 ± 0.01 mm. Additionally, the highest porosity was observed in SG3 beads, measuring 63.6% ± 0.33%. The release of urea was quantified using the DiacetylMonoxim (DAM)–UV visible spectroscopy method. Further, the characterization of the produced hydrogel beads was analyzed using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermogravimetric analyses (TGA). FTIR revealed the characteristic band at 3770 and 2355 cm−1, indicating the presence of urea entrapped in alginate—gum arabic beads. TGA analyses indicates that the good thermal stability of the produced beads.

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来源期刊

Polymers for Advanced Technologies 工程技术-高分子科学

CiteScore

6.20

自引率

5.90%

发文量

337

审稿时长

2.1 months

期刊介绍： Polymers for Advanced Technologies is published in response to recent significant changes in the patterns of materials research and development. Worldwide attention has been focused on the critical importance of materials in the creation of new devices and systems. It is now recognized that materials are often the limiting factor in bringing a new technical concept to fruition and that polymers are often the materials of choice in these demanding applications. A significant portion of the polymer research ongoing in the world is directly or indirectly related to the solution of complex, interdisciplinary problems whose successful resolution is necessary for achievement of broad system objectives. Polymers for Advanced Technologies is focused to the interest of scientists and engineers from academia and industry who are participating in these new areas of polymer research and development. It is the intent of this journal to impact the polymer related advanced technologies to meet the challenge of the twenty-first century. Polymers for Advanced Technologies aims at encouraging innovation, invention, imagination and creativity by providing a broad interdisciplinary platform for the presentation of new research and development concepts, theories and results which reflect the changing image and pace of modern polymer science and technology. Polymers for Advanced Technologies aims at becoming the central organ of the new multi-disciplinary polymer oriented materials science of the highest scientific standards. It will publish original research papers on finished studies; communications limited to five typewritten pages plus three illustrations, containing experimental details; review articles of up to 40 pages; letters to the editor and book reviews. Review articles will normally be published by invitation. The Editor-in-Chief welcomes suggestions for reviews.